CN110935266A - Spraying fan and fog gun machine - Google Patents
Spraying fan and fog gun machine Download PDFInfo
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- CN110935266A CN110935266A CN201911374240.7A CN201911374240A CN110935266A CN 110935266 A CN110935266 A CN 110935266A CN 201911374240 A CN201911374240 A CN 201911374240A CN 110935266 A CN110935266 A CN 110935266A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D47/06—Spray cleaning
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Abstract
The invention relates to a spray fan and a fog gun machine, belongs to the technical field of spray dust fall, and aims to solve the problems of high energy consumption, short effective range and small control range of the existing fog gun machine. The invention relates to a spray fan, which comprises a fan main body, a nozzle and a water chamber, wherein the nozzle and the water chamber are arranged on the fan main body; the nozzle is communicated with the water cavity, water in the water cavity can be sprayed into water mist through the nozzle, and the spraying direction of the nozzle is consistent with the air outlet direction of the spraying fan. According to the invention, the nozzle and the water chamber are arranged on the fan main body, the spraying direction is the same as the airflow generated by the fan, the water mist is directly sprayed out along with the airflow to form the rotary atomizing field with vorticity, and the vorticity of the atomizing field and the airflow field is superposed, so that the energy loss can be reduced, the range of the water mist is greatly improved, and at least 35% -55% of the range can be improved.
Description
Technical Field
The invention relates to the technical field of spray dust fall, in particular to a spray fan and a fog gun machine.
Background
With the rapid development of economy and the continuous acceleration of urbanization process, more and more environmental problems are highlighted, and especially the problem of dust pollution gradually draws social attention. A large amount of dust can be generated in production activities such as mining, construction and the like, and the large amount of dust not only causes the reduction of air quality, but also brings great health hidden troubles to workers in site construction.
The construction site dust generally has the characteristics of sudden dust generation and dense and complex dust generation places, and the dust generation places can be changed along with the promotion of construction. At the initial stage of dust production, because the dust density is high and the range is small, if the dust is timely reduced by adopting an efficient dust removal technology, the dust concentration can be rapidly controlled, the purpose of rapidly reducing the dust is achieved, the dust is prevented from escaping to the periphery, and the pollution range is enlarged.
The method for realizing the spray dust fall by utilizing the trapping effect of fine fog drops on dust is one of the most convenient and efficient methods in a plurality of dust removal methods. In general, a fog drop field generated by a nozzle can only reduce dust in a limited range due to the action of air resistance, and dust removing equipment such as a fog gun machine is provided for improving the influence of the air resistance on the range of the fog drop field.
However, in the practical application process, due to the influence of factors such as the limitation of the fan power and the like, the practical control range of the fog gun is far short of the calibrated range. In addition, the existing fog gun adopts the mode that the nozzles are arranged on the annular water pipe on the air outlet of the air duct, when air flow gushes out from the air outlet (namely the middle of the annular water pipe), the air flow is contacted with fog drops, so that an atomization field and an air flow field are superposed, and then the fog drops are conveyed to a dust falling point under the pushing of wind power of the fan, so that the dust falling purpose is realized. However, in the process of collision between the air flow and the fog drops, a large amount of energy is lost, and in addition, the resistance effect of the air in the process of carrying the fog drops greatly reduces the dust settling effect of the fog gun.
Disclosure of Invention
In view of the foregoing analysis, the embodiments of the present invention provide a spray fan and a fog gun machine, so as to solve the problems of large energy consumption, short effective range, and small control range of the existing fog gun machine.
In one aspect, the present invention provides a spray fan comprising a fan body, a nozzle and a water chamber, the nozzle and the water chamber being disposed on the fan body; the nozzle is communicated with the water cavity, water in the water cavity can be sprayed into water mist through the nozzle, and the spraying direction of the nozzle is consistent with the air outlet direction of the spraying fan.
Further, the fan main body comprises a plurality of fan blades;
the water chamber is arranged at the center of the fan main body, and the fan blades are uniformly distributed around the water chamber;
the nozzle is mounted on the fan blade.
Furthermore, the water outlet of the nozzle is located on the front side of the fan blade, the water inlet of the nozzle is located on the back side of the fan blade, and the water inlet of the nozzle is communicated with the water chamber.
On the other hand, the invention provides a fog gun machine, which comprises an air duct, and the spraying fan, the water bin, the motor and the transmission shaft which are positioned in the air duct;
one end of the transmission shaft is connected with an output shaft of the motor, and the other end of the transmission shaft is connected with the spray fan;
the transmission shaft penetrates through the water chamber, and the water chamber is communicated with the water chamber of the spray fan through the transmission shaft.
Furthermore, the outer wall of the transmission shaft is connected with the bin wall of the water bin in a rotating and sealing mode, and the water bin is static relative to the air guide cylinder.
Furthermore, a fluid channel is arranged in the transmission shaft, an inlet of the fluid channel is communicated with the water chamber, and an outlet of the fluid channel is communicated with the water chamber.
Furthermore, a plurality of water inlets are formed in the side wall of the transmission shaft in the water chamber, and the water inlets are communicated with the fluid channel.
Further, the water chamber is communicated with an external water source;
the output shaft and the transmission shaft are positioned on the central axis of the air guide cylinder, and the central axis of the spray fan is superposed with the central axis of the air guide cylinder.
Further, both ends of the air duct are respectively provided with an air inlet and an air outlet;
the air guide cylinder comprises an air inlet part and an air outlet part which are communicated, the air inlet is positioned at the air inlet part, and the air outlet is positioned at the air outlet part;
the air inlet part and the air outlet part are flaring structures which gradually expand outwards.
Furthermore, a spiral protrusion is arranged in the air outlet part, and the spiral direction of the spiral protrusion is consistent with the rotation direction of the spray fan.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
(1) the spray fan is provided with the nozzle and the water chamber on the fan main body, the spraying direction is in the same direction as the air flow generated by the fan, the water mist is directly sprayed out along with the air flow to form a rotary atomization field with vorticity, and the vorticity of the atomization field and the air flow field is superposed, so that the energy loss can be reduced, the range of the water mist is greatly improved, and at least 35% -55% of the range can be improved;
(2) the atomizing fan is close to the air outlet, the outlet of the nozzle is arranged on the front side of the fan blade, the water mist is sprayed out of the nozzle along with the rotation of the fan, the collision between the air flow and the water mist which are inevitable in the traditional fog gun is reduced, the air flow directly pushes the water mist to the air outlet direction, the vortex quantity in a two-phase flow field is improved, the power loss in the movement process is weakened, the energy loss in the water mist migration process is greatly reduced, the range of the water mist is effectively improved, and at least 35% -55% of the range can be improved;
(3) the air inlet part and the air outlet part of the air duct are of flaring structures which are expanded outwards, the aperture of the whole air duct is reduced and then increased from the air inlet to the air outlet, the flow of the air flow in the air duct follows the fluid flow rule, namely the flow velocity is large at the small aperture and small at the large aperture, so that after the air enters the air duct, the air flow is accelerated continuously along with the continuous reduction of the aperture, and the air inlet part of the air duct plays a role in increasing the flow velocity of the air flow;
(4) the air outlet part of the air duct is internally provided with a spiral bulge, the rotating direction of the spiral bulge is consistent with the rotating direction of the fan blades, air enters the air duct from the air inlet under the air suction effect of the fan, and the spiral bulge is beneficial to the air flow to the air outlet along with the rotating direction of the fan blades and accelerates the rotation of the air flow in the air duct;
(5) the control range of an atomization field is improved by overlapping the vorticity of the water mist and the airflow, and the fog gun machine can drive equipment to operate by using a motor with lower power within the same control range, so that the power of the motor can be reduced by at least 40 percent, the energy consumption is effectively reduced, and the production cost is saved;
(6) the dust-settling device has the advantages of simple structure, convenience in operation, low cost, low energy consumption, long effective injection range and large control range, can realize effective control on dust in an effective range and spray dust settling, and can be widely applied to dust settling measures in the industrial field and the like.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a front view of a spray fan according to a first embodiment;
fig. 2 is a rear view of a spray fan according to the first embodiment;
fig. 3 is a structural view of the fog gun machine according to the second embodiment.
Reference numerals:
1-a spray fan; 11-a nozzle; 12-a water chamber; 13-fan blades; 14-a water conduit;
2-an air duct; 21-an air inlet part; 22-air outlet part; 221-spiral protrusions; 201-air inlet; 202-air outlet; 3-a water chamber; 4-a motor; 41-an output shaft; 5-a transmission shaft; 51-water inlet hole; 52-sealed end; 53-open end; 6-universal joint; 7-water inlet pipe; 8-a quick coupling; 9-a gripper.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
Example one
The embodiment provides a spray fan, as shown in fig. 1-2, a spray fan 1 includes a fan main body, a nozzle 11 and a water chamber 12, the nozzle 11 and the water chamber 12 are disposed on the fan main body, the nozzle 11 is communicated with the water chamber 12, water in the water chamber 12 can be sprayed into mist through the nozzle 11, and the spraying direction of the nozzle 11 is the same as the air outlet direction of the fan.
The fan main body comprises a plurality of fan blades 13, the water chamber 12 is arranged at the center of the fan main body, the fan blades 13 are uniformly distributed around the water chamber 12, and the nozzles 11 are arranged on the fan blades 13.
Specifically, the fan blade 13 is provided with a mounting hole for mounting the nozzle 11, so that the nozzle 11 is more stable.
In this embodiment, the water outlet of the nozzle 11 is located on the front surface of the fan blade 13 (the front surface refers to the surface of the fan blade 13 facing the air outlet direction of the fan), the water inlet of the nozzle 11 is located on the back surface of the fan blade 13, the water inlet of the nozzle 11 is connected to the water chamber 12 through the water conduit 14, the water in the water chamber 12 flows to the nozzle 11 through the water conduit 14, that is, the water conduit 14 is located on the back surface of the fan blade 13, and the inlet and the outlet of the water conduit 14 are respectively in sealed communication with the nozzle 11 and the water.
In order to prevent the water conduit 14 and the nozzle 11 from displacing when the spray fan 1 rotates, which affects the stability and continuity of spraying, the water conduit 14 and the nozzle 11 are fixedly arranged on the fan blades 13. Further, in order to facilitate replacement and maintenance of the nozzle 11 and the water conduit 14, the water conduit 14 and the nozzle 11 are detachably fixed to the fan blades 13.
In order to make the water mist sprayed by the spraying fan 1 uniform, the nozzles 11 are uniformly distributed on the fan blades 13, when the number of the nozzles 11 is half of the number of the fan blades 13, the nozzles 11 are distributed on the fan blades 13 at intervals, and one fan blade 11 is arranged between every two adjacent nozzles 11; when the number of the nozzles 11 is twice the number of the blades 13, two nozzles 11 are provided for each blade 13, and the two nozzles 11 may be arranged side by side or in a column.
In this embodiment, a water chamber 12 is disposed on the axis of the fan body, the fan blades 13 are uniformly distributed around the water chamber 12, the number of the nozzles 11 is the same as the number of the fan blades 13, each fan blade 13 is provided with one nozzle 11, the nozzle 11 is located at the center of the fan blade 13, all the nozzles 11 form a circle, and the center of the circle is located on the central axis of the spray fan 1. The atomizing fan 1 in fig. 1 and 2 has seven blades, and the number of the blades in practical application is not limited to seven.
It should be noted that the number of the water conduits 14 is the same as the number of the nozzles 11, and each nozzle 11 is communicated with the water chamber 12 through the water conduit 14, in this embodiment, the water conduit 14 is a straight pipe and extends from the water chamber 12 to the nozzle 11 along the fan blade 13.
Compared with the prior art, the spray fan of this embodiment is through setting up nozzle 11 and water cavity 12 in the fan main part, and the air current syntropy that spraying direction and fan produced, and the water smoke is direct outwards jets away along with the air current, forms the rotatory atomizing field that has the vorticity, and the vorticity stack of atomizing field and air current field reduces energy loss, has increased substantially the range of water smoke, can improve 35% ~ 55% of range.
Example two
The embodiment provides a fog gun machine, as shown in fig. 3, the fog gun machine includes a spray fan 1, an air duct 2, a water chamber 3, a motor 4 and a transmission shaft 5 provided in the first embodiment, the spray fan 1, the water chamber 3, the motor 4 and the transmission shaft 5 are located in the air duct 2, one end of the transmission shaft 5 is connected to an output shaft 41 of the motor 4, and the other end of the transmission shaft 5 is connected to the spray fan 1, so that the spray fan 1 rotates along with the output shaft 41 of the motor 4, the transmission shaft 5 penetrates through the water chamber 3, the water chamber 3 is communicated with a water chamber 12 of the spray fan 1 through the transmission shaft 5, so that water in the water chamber 3 flows to the water chamber 12 through the transmission shaft 5, and then flows to a nozzle 11 from the water chamber 12, and finally forms water mist under the injection.
A fluid passage is arranged in the transmission shaft 5, the inlet of the fluid passage is communicated with the water chamber 3, and the outlet of the fluid passage is communicated with the water chamber 12, namely, the water chamber 3 is communicated with the water chamber 12 through the fluid passage in the transmission shaft 5.
The outer wall of the transmission shaft 5 is connected with the bin wall of the water bin 3 in a rotating and sealing mode, so that water in the water bin 3 is prevented from leaking out of the connection position of the outer wall of the transmission shaft 5 and the bin wall of the water bin 3.
It should be noted that the transmission shaft 5 rotates with the motor 4, and the water chamber 3 does not rotate with the transmission shaft 5, that is, the water chamber 3 is stationary relative to the air duct 2.
In order to ensure the spraying amount of the fog gun machine, a section of the transmission shaft 5 located in the water chamber 3 (the section of the transmission shaft 5 located in the water chamber 3 is hereinafter referred to as a water inlet section) is provided with a plurality of water inlets 51, the water inlets 51 are used for communicating the water chamber 3 with a fluid channel, namely the fluid channel of the transmission shaft 5 is provided with a plurality of inlets (namely the water inlets 51), and the number N of the water inlets 51 is more than or equal to 1. It should be noted that the fluid passage extends from the outlet to the farthest inlet 51 to ensure that the fluid passage can feed water from each inlet 51.
In this embodiment, the transmission shaft 5 is a hollow shaft with a closed end, at this time, the transmission shaft 5 includes a closed end 52 and an open end 53, the closed end 52 is connected with the output shaft 41 of the motor 4 through the universal joint 6, the open end 53 is communicated and hermetically connected with the water chamber 12 of the spray fan 1, a plurality of water inlet holes 51 are formed in the pipe wall of the water inlet section of the hollow shaft, and water in the water chamber 3 enters the hollow shaft through the water inlet holes 51 and enters the water chamber 12 from the open end 53 of the hollow shaft. To ensure the strength of the hollow shaft, the section of the hollow shaft between the sealing end 52 and the inlet hole 51 closest to the sealing end 52 is provided as a solid shaft to provide sufficient rotational strength to the hollow shaft.
It should be noted that, on the premise of ensuring that the rotation of the transmission shaft 5 is not affected, a plurality of water inlet holes 51 may be formed in the water inlet section of the transmission shaft 5 to ensure the spraying amount of the fog gun machine. Further, the section of intaking sets up to hollow out construction, but the material of transmission shaft 5 should select the material that intensity is enough big this moment to guarantee transmission shaft 5's transmission intensity, in order to avoid influencing the transmission between spraying fan 1, the motor 2.
The water chamber 3 is communicated with an external water source through a water inlet pipe 7, so that the fog gun can continuously spray. In order to ensure that the nozzle 11 can spray fine water mist and ensure that the water mist has a certain range, an external water source communicated with the water chamber 3 has a certain water pressure, and in practical application, the selection of the water pressure is related to the model, the use environment and the like of the fog gun machine.
Specifically, in order to facilitate the connection between the water chamber 3 and an external water source, the air duct 2 is provided with a through hole for the water inlet pipe 7 to pass through. In this embodiment, the position of the through hole corresponds to the position of the water chamber 3, and the water inlet pipe 7 passes through the through hole and then is connected with the pipeline of the external water source through the quick coupling 8.
An air inlet 201 and an air outlet 202 are respectively arranged at two ends of the air duct 2, and the air inlet 201 is communicated with the air outlet 202. The air duct 2 comprises an air inlet portion 21 and an air outlet portion 22 which are connected in a through mode, the air inlet 201 is located in the air inlet portion 21, the air outlet 202 is located in the air outlet portion 22, air flow enters the air duct 2 from the air inlet 201, passes through the air inlet portion 21 and the air outlet portion 22, and flows out of the air duct 2 from the air outlet 202.
The air inlet part 21 and the air outlet part 22 of the air duct 2 are flaring structures which expand outwards.
Specifically, the aperture of the air inlet portion 21 decreases gradually from the air inlet 201 to the connection between the air inlet portion 21 and the air outlet portion 22, so that the airflow is accelerated continuously along with the decrease of the aperture after the airflow enters the air inlet portion 21 from the air inlet 201, and thus the air inlet portion 21 plays a role in increasing the airflow velocity, so that the fog gun has a longer range.
The aperture of the air outlet part 22 from the connection part of the air outlet part 22 and the air inlet part 21 to the air outlet 202 is gradually increased, so that the influence range of an airflow field can be effectively enlarged, and the fog gun machine has a wider action range.
It should be noted that the cross sections of the air inlet portion 21 and the air outlet portion 22 (cut perpendicular to the plane of the central axis of the air duct 2) define holes, the air inlet 201, and the air outlet 202, which are circular or non-circular, and when the holes, the air inlet 201, and the air outlet 202 are non-circular, the aperture refers to the maximum width of the holes, the air inlet 201, and the air outlet 202.
In this embodiment, the cross section of the air duct 2 is circular, the aperture of the air duct 2 from the air inlet 201 to the air outlet 202 is first reduced and then increased, the minimum aperture is the connection between the air inlet portion 21 and the air outlet portion 22, that is, the air inlet portion 21 and the air outlet portion 22 are tapered cylinders, and the diameters of the small circular ends of the air inlet portion 21 and the air outlet portion 22 are the same and are transitionally connected, so that the air duct 2 can rapidly supply air and discharge air, and the flow rate of the entering air flow is effectively increased.
In order to ensure that the airflow entering from the air inlet 201 can be discharged from the air outlet 202 as soon as possible and accelerate the flow rate of the airflow inside the air guide cylinder 2, the aperture of the air outlet 202 is larger than that of the air inlet 201, and specifically, the aperture of the air outlet 202 is 2-5 times that of the air inlet 201. In this embodiment, the air outlet 202 and the air inlet 201 are circular openings, and the aperture of the air outlet 202 is 3 times that of the air inlet 201.
In order to ensure that air can be quickly and smoothly fed into the air guide duct 2, the length of the air inlet portion 21 cannot be too long, and specifically, the length of the air outlet portion 22 is 7-10 times that of the air inlet portion 21. In this embodiment, the length of the air outlet portion 22 is 9 times that of the air inlet portion 21.
In order to avoid influencing the air inlet of the air duct 2, the spraying fan 1, the water bin 3 and the motor 4 are sequentially arranged in the air outlet part 22, the spraying fan 1 is close to the air outlet 202, the output shaft 41 of the motor 4 and the transmission shaft 5 are positioned on the central axis of the air duct 2, and the central axis of the spraying fan 1 is superposed with the central axis of the air duct. In this embodiment, the water chamber 3 and the motor 4 are detachably fixed in the air outlet portion 22 of the guide cylinder 2 through the clamper 9, and the motor 4 and the water chamber 3 are located on the central axis of the guide cylinder 2.
It should be noted that, in order not to affect the air inlet and outlet of the air duct 2, the motor 4 is located a distance from the connection between the air inlet portion 21 and the air outlet portion 22, the diameter of the motor is smaller than the minimum aperture of the air duct 2, and the spraying fan 1 is located a distance from the air outlet 202. In this embodiment, the distance from the spraying fan 1 to the outer end face of the motor 4 (the end face close to the air inlet 201) is half the length of the air outlet portion 22, and the spraying fan 1, the water chamber 3, the motor 4 and the transmission shaft 5 are integrally located in the middle of the air outlet portion 22.
The air outlet portion 22 of the air duct 2 is provided with a spiral protrusion 221, specifically, the spiral protrusion 221 extends from the connection between the air outlet portion 22 and the air inlet portion 21 to the air outlet 202, the spiral direction of the spiral protrusion 221 is the same as the rotation direction of the fan blades 13 of the atomizing fan 1, the spiral protrusion 221 facilitates the air flow sucked into the air duct 2 to flow to the air outlet 202 along with the rotation of the fan blades, the rotation of the air flow in the air duct is accelerated, and the vortex flow rate and the range of the fog gun are enhanced.
The operating principle of the fog gun machine that this embodiment provided: firstly, a water chamber 3 is communicated with an external water source, after the water chamber 3 is fully stored, under the action of natural flow and water pressure, water in the water chamber 3 flows to a water chamber 12 of a spray fan 1 through a fluid channel in a transmission shaft 5, after the water chamber 12 is fully stored, under the action of water pressure, the water in the water chamber 12 flows to a nozzle 11 positioned on a fan blade 13 through a water guide pipe 14, the water is sprayed into water mist through the nozzle 11, the direction of the water mist faces the direction of an air outlet 202, after the nozzle 11 sprays the water mist, a motor 4 is started, under the transmission action of the transmission shaft 5, the spray fan 1 rotates along with an output shaft 41 of the motor 4, the water mist rotates along with the rotation of the fan blade 13 to form a rotary atomization field with a vortex amount, and the water mist is sprayed out from the air outlet 202 under the action of self power and air flow, so that the mist gun provided by the embodiment can generate high vortex amount, Spray with large range.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A spray fan, comprising a fan body, a nozzle (11) and a water chamber (12), the nozzle (11) and the water chamber (12) being provided on the fan body;
the nozzle (11) is communicated with the water chamber (12), water in the water chamber (12) can be sprayed into water mist through the nozzle (11), and the spraying direction of the nozzle (11) is consistent with the air outlet direction of the spraying fan.
2. The atomizing fan according to claim 1, characterized in that said fan body comprises a plurality of fan blades (13);
the water chamber (12) is arranged at the center of the fan main body, and the fan blades (13) are uniformly distributed around the water chamber (12);
the nozzle (11) is arranged on the fan blade (13).
3. The atomizing fan according to claim 2, characterized in that the outlet of the nozzle (11) is located on the front side of the fan blade (13) and the inlet of the nozzle (11) is located on the back side of the fan blade (13), the inlet of the nozzle (11) communicating with the water chamber (12).
4. A fog gun machine, characterized in that it comprises an air duct (2) and a spray fan (1) according to claims 1 to 3, a water chamber (3), a motor (4) and a transmission shaft (5) which are arranged in the air duct (2);
one end of the transmission shaft (5) is connected with an output shaft (41) of the motor (4), and the other end of the transmission shaft (5) is connected with the spray fan (1);
the transmission shaft (5) penetrates through the water bin (3), and the water bin (3) is communicated with the water chamber (12) of the spray fan (1) through the transmission shaft (5).
5. The fog gun machine according to claim 4, characterized in that the outer wall of the transmission shaft (5) is connected with the wall of the water chamber (3) in a rotating and sealing manner, and the water chamber (3) is static relative to the air guide cylinder (2).
6. The fog gun machine according to claim 4, characterized in that a fluid channel is arranged in the drive shaft (5), the inlet of the fluid channel is communicated with the water chamber (3), and the outlet of the fluid channel is communicated with the water chamber (12).
7. The fog gun machine according to claim 5, characterized in that a plurality of water inlet holes (51) are formed on the side wall of the transmission shaft (5) in the water chamber (3), and the water inlet holes (51) are communicated with the fluid channel.
8. The fog gun machine according to claim 4, characterized in that the water chamber (3) is in communication with an external water source;
the output shaft (41) and the transmission shaft (5) are located on the central axis of the air guide cylinder (2), and the central axis of the spray fan (1) is overlapped with the central axis of the air guide cylinder (2).
9. The fog gun machine according to any one of claims 4 to 8, characterized in that the two ends of the air duct (2) are respectively provided with an air inlet (201) and an air outlet (202);
the air duct (2) comprises an air inlet part (21) and an air outlet part (22) which are communicated, the air inlet (201) is positioned in the air inlet part (21), and the air outlet (202) is positioned in the air outlet part (22);
the air inlet part (21) and the air outlet part (22) are flaring structures which gradually expand outwards.
10. The fog gun machine according to claim 9, characterized in that a spiral protrusion (221) is arranged in the air outlet part (22), and the spiral direction of the spiral protrusion (221) is consistent with the rotation direction of the spray fan (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911374240.7A CN110935266A (en) | 2019-12-26 | 2019-12-26 | Spraying fan and fog gun machine |
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| CN201911374240.7A CN110935266A (en) | 2019-12-26 | 2019-12-26 | Spraying fan and fog gun machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111468316A (en) * | 2020-04-16 | 2020-07-31 | 孟凡旺 | Environment-friendly dust removal spraying equipment |
| CN112665046A (en) * | 2020-12-21 | 2021-04-16 | 安徽郁金香新能源科技有限公司 | Method for applying shallow geothermal energy to lithium ion power battery compartment ecosystem |
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